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package cronos.monitor;

import cronos.application.Application;
import cronos.application.ApplicationDAO;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author leoomoreira
 */
public class MonitorApplicationList extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        MonitorApplicationDAO monitorApplicationDAO = null;
        ApplicationDAO applicationDAO = null;
        try {
            applicationDAO = new ApplicationDAO();
            List<Application> applicationList = applicationDAO.getAll();
            applicationDAO.commit();
            request.setAttribute("applicationList", applicationList);

            monitorApplicationDAO = new MonitorApplicationDAO();

            String applicationIdStr = request.getParameter("applicationId");

            if (request.getParameter("applicationId") != null && request.getParameter("applicationId").length() > 0) {
                request.setAttribute("applicationId", applicationIdStr);
            }

            List<MonitorApplication> monitorApplicationList = new ArrayList<MonitorApplication>();
            if (applicationIdStr != null && applicationIdStr.trim().length() > 0) {
                monitorApplicationList = monitorApplicationDAO.getMonitorApplicationByApplicationId(Integer.parseInt(applicationIdStr));
            } else {
                monitorApplicationList = monitorApplicationDAO.getMonitorApplicationInAllApplications();
            }
            monitorApplicationDAO.commit();

            request.setAttribute("monitorApplicationList", monitorApplicationList);
        } catch (SQLException ex) {
            if (applicationDAO != null) {
                try {
                    applicationDAO.rollback();
                } catch (SQLException ex1) {
                }
            }
            if (monitorApplicationDAO != null) {
                try {
                    monitorApplicationDAO.rollback();
                } catch (SQLException ex1) {
                }
            }
            request.setAttribute("message", ex.getMessage());
        }
        request.getRequestDispatcher("WEB-INF/pages/monitor/monitorList.jsp").forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
